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CGAM 052A

Hey guys, I am working on a
Model CGAM052A
Serial U09L12694
the confusion that I am having is that I am tring to obtain a simple
Oil sample., well I do the normal pump down procedure and on either circuit
And get the psi to around 8 and the I try to get a small sample,.! Good luck with that, what am I missing. ? I have the manual from the machine however I have the IOM CG-SVX17 -EN, good book., the manual says that only 1/2% flows around in the refrigeration circuit and the rest is w the compressor.,
Also I know about the access on the side of the compressor and the dip tube., well when I try to get a small amount , no luck. Any thoughts?
Also when I do perform the pump down., I do notice, at a very slow rate that the pressure do rise., again, any input would be great! Also I was going to perform the acid test on site and send off the rest for moisture and metals.
Thx guys

you should be able to get an oil sample, i tend to get mine with the compressor running as the oil level is typically higher. oil samples for scrolls are a very good indication of the problems going on inside the compressor, however, there isn't much oil. after a few oil samples, you might be low on oil. then when you add oil, you dilute the wear metals for a few oil samples so now you are right back in the same boat starting the trend over with a new (nearly new) oil charge. i do not recommend oil samples on scrolls unless there is a moisture/acid/compressor clean-up issue.

and you can change the oil (or at least most of it) that is in the compressor, however, if it is not in the compressor, ya'll can't change it!

Don't step on my favorite part of the Constitution just to point out your favorite part.

Political Correctness is forced on you because you have forgotten decency.

Guys i have a chiller plant with three cgam130. Two chillers on and one lags. It is a variable primary flow plant. The flow through the three evaps is almost exactly the same. The setpoint is the same for the three chillers 42F as per Trane recommensations for a vpf chillerplant. The problem with this is that when the two leading chillers reach their lwt setpoint they turn off one compressor. Since the cw flow is the same on both chillers they do it almost at the same time. Then the water temp rises and both chillers start one compressor again (basically hunting). I verify on the manuals iom and dynaview manual and I foun that there is a staging deadband adjustment. Im guessing that if I put different values there for the chillers this could help how ever there is not detailed information on the manuals about this features. Any help on this will be apreciated. I know that I might be able to accomplish this by unbalancing the flow through the evaps but I preffer no to do it that way

Guys i have a chiller plant with three cgam130. Two chillers on and one lags. It is a variable primary flow plant. The flow through the three evaps is almost exactly the same. The setpoint is the same for the three chillers 42F as per Trane recommensations for a vpf chillerplant. The problem with this is that when the two leading chillers reach their lwt setpoint they turn off one compressor. Since the cw flow is the same on both chillers they do it almost at the same time. Then the water temp rises and both chillers start one compressor again (basically hunting). I verify on the manuals iom and dynaview manual and I foun that there is a staging deadband adjustment. Im guessing that if I put different values there for the chillers this could help how ever there is not detailed information on the manuals about this features. Any help on this will be apreciated. I know that I might be able to accomplish this by unbalancing the flow through the evaps but I preffer no to do it that way

Our current compressors starts/hour rate is 3

Techbas

You should have started a new thread. Since you are a professional member, start a new thread in the pro chiller forum and we can talk shop.